The match was delayed for over an hour after Korea DPR stormed off the field during the warm-up as its team line-up was announced alongside the South Korean flag.
Eventually, after the line-up was announced again alongside the right flag, it retook the field and went on to win 2-0 thanks to two goals by
Ui said: "Before the match when warming up the announcement from the stadium introduced each of our players.
"Our players were announced with their photos and names alongside the South Korean national flag. The national flag difference is a big problem.
"Our team was not going to participate unless the problem was solved properly. Unfortunately it took some time later for the broadcast to be done again properly and we made the decision to go on with the match."
Ui went on to stress the importance of the offense caused by showing the images alongside the South Korean flag and even went on to imply that foul play could have been involved.
Asked whether he believed the wrong flag had deliberately been used, he said: "That was the question I was going to ask LOCOG and FIFA.
"We were angry because our players were shown as if they were from
"Our players cannot be shown especially with other flags, especially the South Korean one.
"If this matter had not been solved, continuing would have been a nonsense."
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